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SONEX® Pyramid Panels Technical Specifications
Physical Data — willtec®
| Material |
Open-cell melamine-based foam |
| Density |
0.5 to 0.7 lbs./cubic ft. (ASTM D3574-77) |
| Long-Term Service Temperature |
302 degrees F |
| Fire Resistance |
Class 1 per ASTM E 84 (all finishes)
Meets UL 1715 (willtec natural) |
| Flame Spread per ASTM E 84 |
Natural: 5
Painted: 10 |
| Smoke Density per ASTM E 84 |
Natural: 50
Painted: 10 |
| Microbial Growth |
Passes UL 181, section 11 |
| Fungus Resistance |
Rating 0 per ASTM G21 |
| Finishes |
Natural White or Grey, painted |
Sound Absorption
| Finish |
Thickness |
Coefficients per ASTM C423-90a
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| |
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125Hz
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250Hz
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500Hz
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1kHz
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2kHz
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4kHz
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NRC
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Mounting
Type
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| Natural White or Grey |
2"
3"
4" |
0.07
0.09
0.18 |
0.25
0.37
0.44 |
0.6
0.81
0.96 |
0.94
1.01
1.14 |
0.97
1.03
1.18 |
1.08
1.07
1.19 |
0.7
0.8
0.95 |
B
B
B |
Painted
(Charcoal, Beige, Brown, Blue, Light-Grey) |
2", 3", 4" |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
B |
Installation Information
- Make sure both the panels and the surface to which the panels are being applied are free of dust and dirt. If adhering to a metal surface, use a degreaser.
- Apply a line of adhesive around the perimeter of the panel approximately 1" from the edge.
- Apply a line of adhesive from opposite corners through the center of the panel, creating an "X".
- Press panel into place and hold for 5 seconds. Then pull panel away to allow adhesive to become tacky. Last, press the panel back into position and hold again for 5 seconds.
- Wear clean cotton/canvas gloves for installation.
- Use a sharp razor or fixed blade-knife and a metal straightedge to cut panels. For best results, cut panels on flat side.
- Overhead installations may require additional adhesive and mechanical support to ensure a strong enough bond.
To find out more about SONEX Pyramid Panels, explore the "Related Links" and "Ralated Downloads" area, located on the right side of this page.
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